一种双区掏槽炮孔布置结构及其应用的爆破成井方法

Zip Code:c576f0c85848a14d10428d1b79269fc7d68bde9ba6ecb95648b168a03671c3821c778c2bedf0cae5d03c95a065c3a5efa4243241acb9eb6089885db6f9f3fa7f5b7491eb5af48e7ab43d253e29e0fa6991b0af260ac98903cc7fbca150cb2fc86cb6bd41d95f78a263ba3d6f6aa504ee56cdd8693f2e6f13b576940cee3633de

Postal Address:bf8904b72ffaedf9fbba2104742f7b458b75d097fa4bdaa0a4de7c7974eb6f28785e6c8d4ef6f1b081f8424970eba3ff4ac5bea581fcafc26fd0772977174a678f3fa0f908e4d01910e14098de6d99f68442f6cd38bcdc7942d2f491b2adf127055efccb990d8884b17ec8d2eadc7884f88e7506e360e00884d4c03221da4013

Email:b6d38f16ff72fb55af59fdb4381821f1f7aadb1eef8254d516162d1dc4659cbc7f3e90ee645c3ccf0561f8888da8db5836f8c84e54328eed0f5131a5ef4a41d91be02f8882ce610de8852bd4cbb981f2e797610173574dfe8af0bbf98684ecae2e480a517bf5c7ede815c17220d1d45f4cb138f5d1956b87cb232797fdef418c